All of us, without exception, have gone through one period or another in our life wherein we felt lonely. Loneliness is a sweeping feeling of isolation, despite the person's being in the midst of a crowd. The feeling of loneliness does not require that a person be far from people, for a person might be living with others, and he nevertheless feels lonely. And a person may be surrounded by many people, yet his feeling of loneliness increases. For the feeling of loneliness springs from within. His Eminence Metropolitan Youssef, in this book, sheds light on loneliness, its definition, causes, and treatment.